CAROLYN A SITES DO
NPI 1790718310
Internal Medicine in Milwaukie, OR
About Carolyn A Sites Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CAROLYN A SITES DO (NPI 1790718310) is an individual internal medicine provider in Milwaukie, Oregon, licensed in Oregon (DO20605) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Providence Newberg Medical Center, and maintains a secondary practice location in Portland.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Carolyn A Sites Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Carolyn Sites reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukie, OR 97222
- Reassigned Medicare billing, Oregon enrollment
- 1,501 clinicians in this Medicare group
Portland, OR 97225
- Reassigned Medicare billing, Oregon enrollment
- 753 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Providence Newberg Medical Center
Acute Care Hospitals · Newberg, ORProvidence Willamette Falls Medical Center
Acute Care Hospitals · Oregon City, ORProvidence Milwaukie Hospital
Acute Care Hospitals · Milwaukie, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97222 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Carolyn Sites's NPI number?
The NPI number for Carolyn Sites is 1790718310. It was assigned to this individual provider in the NPPES registry on July 8, 2006.
Where is Carolyn Sites located?
Carolyn Sites practices at 10150 SE 32nd Ave, Milwaukie, OR 97222. The listed phone number is (503) 513-8641.
What is Carolyn Sites's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Carolyn Sites enrolled in Medicare?
Yes. Carolyn Sites is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Carolyn Sites's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carolyn Sites reassigns Medicare benefits to 2 organizations: Providence Health & Services - Oregon (Milwaukie, OR) and Providence Health & Services - Oregon (Portland, OR). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Carolyn Sites's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Carolyn Sites affiliated with any hospitals?
According to CMS data, Carolyn Sites is affiliated with Providence Newberg Medical Center, Providence Willamette Falls Medical Center and Providence Milwaukie Hospital.
When was this NPI record last updated?
The NPPES record for Carolyn Sites was last updated on August 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Carolyn A Sites, DO · NPI 1790718310
Internal Medicine physician in Milwaukie, Oregon. Individual provider, active in the CMS NPPES registry since July 8, 2006.
## Identity
- **NPI:** 1790718310 (Entity type: Individual)
- **Enumerated:** July 8, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** DO20605 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 10150 SE 32ND AVE, Milwaukie, OR 97222-6516
- **Phone:** (503) 513-8641
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Providence Health & Services - Oregon (NPI 1881766061, Milwaukie, OR); Providence Health & Services - Oregon (NPI 1114015971, Portland, OR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Kansas City University Of Med & Biosciences, College Of Osteo Med, class of 1996
## Record status
- **NPPES last updated:** August 19, 2025
- **Other identifiers:** Medicaid 288443 (OR)
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Source: [NPI Profile](https://npiprofile.com/npi/1790718310) · Data from the CMS NPPES public registry.